Advances in microprocessor technology have enabled the application of modern control techniques and failure detection diagnostics to various processes for improved system performance. This paper presents experimental results for an on-board microprocessor-based failure detection package designed to assist in the diagnosis of heat pump failures. A model-free limit and trend checking scheme, and a model-based innovations detection formulation operate in parallel to detect anomalous behavior. This dual approach permits the study of tradeoffs between failure detection performance and method complexity. A series of typical anomalies are experimentally simulated in a heat pump, and results are presented to demonstrate the performance of each detection strategy.
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December 1992
Research Papers
Failure Detection Diagnostics for Thermofluid Systems
J. Wagner,
J. Wagner
Ray W. Herrick Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, Ind. 47907
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R. Shoureshi
R. Shoureshi
Ray W. Herrick Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, Ind. 47907
Search for other works by this author on:
J. Wagner
Ray W. Herrick Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, Ind. 47907
R. Shoureshi
Ray W. Herrick Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, Ind. 47907
J. Dyn. Sys., Meas., Control. Dec 1992, 114(4): 699-706 (8 pages)
Published Online: December 1, 1992
Article history
Received:
March 19, 1989
Revised:
March 1, 1991
Online:
March 17, 2008
Citation
Wagner, J., and Shoureshi, R. (December 1, 1992). "Failure Detection Diagnostics for Thermofluid Systems." ASME. J. Dyn. Sys., Meas., Control. December 1992; 114(4): 699–706. https://doi.org/10.1115/1.2897743
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